Patents by Inventor Takatugu Suzuki

Takatugu Suzuki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11708383
    Abstract: An organic borane complex contains, as a component, triarylborane having an enhanced bonding between a boron atom and a carbon atom on an aryl group. The organic borane complex contains, as a component, triarylborane having a structure represented by the following general formula (1), wherein X1 and X2 each independently represent an oxygen atom or a sulfur atom; X3 and X4 each independently represent a hydrogen atom or a substituent, or X3 and X4 are linked together to be a single atom; R1 to R3 each independently represent a hydrogen atom or a substituent; and p, q and r each independently represent an integer of 1 to 3. Also disclosed are a composition containing organic borane, and an organic electroluminescent element.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: July 25, 2023
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takatugu Suzuki, Hiroshi Kita, Yuichi Kitamoto, Shuichi Oi
  • Patent number: 11696500
    Abstract: The purpose of the present invention is to provide: a ?-conjugated compound exhibiting excellent light emission characteristics; an organic electroluminescent element using same; a display device; and an illumination device. Accordingly, this organic electroluminescent element is provided with: a positive electrode; a negative electrode; and at least one organic layer which is sandwiched between the positive electrode and the negative electrode, and which includes a light emission layer. The light emission layer includes a ?-conjugated compound having a structure represented by any of general formulae (1)-(3) (in general formulae (1)-(3), at least one among R1-R4, R5-R8, and R9-R16 represents a group represented by general formula (4) (in general formula (4): Ar1 and Ar2 represent substituted or unsubstituted aryl groups; L1 represents a single bond or a substituted or unsubstituted arylene group; and # represents a bond to general formulae (1)-(3))).
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: July 4, 2023
    Assignee: MERCK PATENT GMBH
    Inventors: Ryutaro Sugawara, Takatugu Suzuki
  • Patent number: 11358951
    Abstract: In order to provide a novel ?-conjugated compound capable of increasing the light-emission efficiency of an organic electroluminescence element, for example, this ?-conjugated compound has a structure indicated by general formula (1). (In general formula (1): Z1-Z6 each independently indicate a hydrogen atom, a deuterium atom, an electron-donating group D, or an electron-withdrawing group A; at least out of two among Z1-Z6 is an electron-donating group D and the other is an electron-withdrawing group A; and at least one ortho position combination Z1 and Z2, Z2 and Z3, Z3 and Z4, Z4 and Z5, Z5 and Z6, or Z6 and Z1 among Z1-Z6 is one combination out of an electron-donating group D and an electron-donating group D, an electron-withdrawing group A and an electron-withdrawing group A, or an electron-donating group D and an electron-withdrawing group A.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: June 14, 2022
    Assignee: MERCK PATENT GMBH
    Inventors: Yasuo Miyata, Taketo Namikawa, Takayuki Iijima, Ryutaro Sugawara, Tetsuya Yamada, Takatugu Suzuki
  • Publication number: 20210292342
    Abstract: An organic borane complex contains, as a component, triarylborane having an enhanced bonding between a boron atom and a carbon atom on an aryl group. The organic borane complex contains, as a component, triarylborane having a structure represented by the following general formula (1), wherein X1 and X2 each independently represent an oxygen atom or a sulfur atom; X3 and X4 each independently represent a hydrogen atom or a substituent, or X3 and X4 are linked together to be a single atom; R1 to R3 each independently represent a hydrogen atom or a substituent; and p, q and r each independently represent an integer of 1 to 3. Also disclosed are a composition containing organic borane, and an organic electroluminescent element.
    Type: Application
    Filed: September 28, 2017
    Publication date: September 23, 2021
    Inventors: Takatugu SUZUKI, Hiroshi KITA, Yuichi KITAMOTO, Shuichi OI
  • Publication number: 20190334097
    Abstract: The purpose of the present invention is to provide: a ?-conjugated compound exhibiting excellent light emission characteristics; an organic electroluminescent element using same; a display device; and an illumination device. Accordingly, this organic electroluminescent element is provided with: a positive electrode; a negative electrode; and at least one organic layer which is sandwiched between the positive electrode and the negative electrode, and which includes a light emission layer. The light emission layer includes a ?-conjugated compound having a structure represented by any of general formulae (1)-(3) (in general formulae (1)-(3), at least one among R1-R4, R5-R8, and R9-R16 represents a group represented by general formula (4) (in general formula (4): Ar1 and Ar2 represent substituted or unsubstituted aryl groups; L1 represents a single bond or a substituted or unsubstituted arylene group; and # represents a bond to general formulae (1)-(3))).
    Type: Application
    Filed: June 26, 2017
    Publication date: October 31, 2019
    Inventors: Ryutaro SUGAWARA, Takatugu SUZUKI
  • Publication number: 20190214578
    Abstract: An object of the present invention is to provide an organic electroluminescent element having a maximum emission wavelength in a near-infrared region, high luminous efficiency, and a small change in resistance value over time during passage of a current. An organic electroluminescent element of the present invention includes a positive electrode, a negative electrode, and an organic layer sandwiched between the positive electrode and the negative electrode and including at least a light emitting layer. The light emitting layer includes a first organic compound formed of a delayed fluophor or a phosphorescent compound having ?EST of 0.3 eV or less. Any one of the positive electrode, the negative electrode, and the organic layer includes a second organic compound formed of a fluorescent dye represented by general formula (1) or (2), having a maximum emission wavelength of 700 nm to 1000 nm in a fluorescence spectrum.
    Type: Application
    Filed: July 6, 2017
    Publication date: July 11, 2019
    Applicant: Konica Minolta, Inc.
    Inventors: RYUTARO SUGAWARA, TAKATUGU SUZUKI
  • Publication number: 20190118462
    Abstract: A method for manufacturing a three-dimensionally shaped product, capable of obtaining a three-dimensionally shaped product having a sufficient mechanical strength without reduction in a shaping speed. A method for manufacturing a three-dimensionally shaped product includes a step of preparing a fiber sheet having a predetermined shape, a step of applying a three dimensional shaping composition to the fiber sheet, and a step of solidifying the three dimensional shaping composition applied to the fiber sheet.
    Type: Application
    Filed: March 22, 2017
    Publication date: April 25, 2019
    Inventors: Hazuki NAKAE, Takuji HATANO, Takatugu SUZUKI
  • Publication number: 20180203175
    Abstract: A triazole compound having a structure represented by the following Formula (1.2): wherein Z represents a structure represented by the following Formula (1.2a), q is 2 or 3, and at least two structures Z bonded to the benzene ring of Formula (1.2) and are located in the ortho- or meta-position relative to each other: wherein R10 represents a hydrogen atom, an alkyl group, or an alkoxy group, p represents an integer of 1 to 5, and * represents a position at which the structure is bonded to the benzene ring.
    Type: Application
    Filed: March 15, 2018
    Publication date: July 19, 2018
    Applicant: KONICA MINOLTA, INC.
    Inventors: Hiroyoshi KIUCHI, Takatugu SUZUKI, Kiyoshi FUKUSAKA, Rie FUJISAWA, Hiroshi KITA, Issei NAKAHARA
  • Patent number: 10012777
    Abstract: The present invention provides a resin composition capable of forming a film exhibiting a small humidity-dependent variation in optical values; a triazole compound to be incorporated into the resin composition; an optical film and an optical lens, each of which is prepared from the resin composition and exhibits a small humidity-dependent variation in optical values; and a polarizing plate, a circularly polarizing plate, and an image display device, each of which includes the optical film and exhibits excellent moisture resistance. The resin composition of the present invention contains a resin and a compound having a 5-membered or 6-membered aromatic hydrocarbon or heterocyclic ring, wherein the resin is a hygroscopic resin, the compound has at least three specific aromatic rings having a specific NICS value, and the specific aromatic rings are bonded to one another via a single bond or one or two atoms.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: July 3, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Hiroyoshi Kiuchi, Takatugu Suzuki, Kiyoshi Fukusaka, Rie Fujisawa, Hiroshi Kita, Issei Nakahara
  • Publication number: 20180170914
    Abstract: In order to provide a novel ?-conjugated compound capable of increasing the light-emission efficiency of an organic electroluminescence element, for example, this ?-conjugated compound has a structure indicated by general formula (1). (In general formula (1): Z1-Z6 each independently indicate a hydrogen atom, a deuterium atom, an electron-donating group D, or an electron-withdrawing group A; at least out of two among Z1-Z6 is an electron-donating group D and the other is an electron-withdrawing group A; and at least one ortho position combination Z1 and Z2, Z2 and Z3, Z3 and Z4, Z4 and Z5, Z5 and Z6, or Z6 and Z1 among Z1-Z6 is one combination out of an electron-donating group D and an electron-donating group D, an electron-withdrawing group A and an electron-withdrawing group A, or an electron-donating group D and an electron-withdrawing group A.
    Type: Application
    Filed: April 27, 2016
    Publication date: June 21, 2018
    Applicant: Konica Minolta, Inc.
    Inventors: Yasuo MIYATA, Taketo NAMIKAWA, Takayuki IIJIMA, Ryutaro SUGAWARA, Tetsuya YAMADA, Takatugu SUZUKI
  • Patent number: 9720140
    Abstract: Provided is an optical film containing a cellulose derivative, the optical film having an in-plane retardation Ro550 within the range of 120 to 160 nm measured at a wavelength of 550 nm under an atmosphere of a temperature of 23° C. and a relative humidity of 55%, and a ratio Ro450/Ro550 within the range of 0.65 to 0.99, Ro450/Ro550 being a ratio of an in-plane retardation Ro450 measured at a wavelength of 450 nm to the in-plane retardation Ro550 measured at a wavelength of 550 nm, wherein, a substituent of a glucose skeleton in the cellulose derivative satisfies the requirements (a) and (b) which are described in the specification, and the optical film contains a compound A satisfying the following condition defined by Expression (a1) which is described in the specification.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: August 1, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventors: Rie Fujisawa, Hiroyoshi Kiuchi, Kiyoshi Fukusaka, Takatugu Suzuki, Hiroshi Kita
  • Patent number: 9500790
    Abstract: A optical film includes a thermoplastic resin and a compound wherein: (1) the absorption spectrum of said compound in solution has at least two absorption maxima in the 200-350 nm wavelength range; (2) letting ?max1 represent the wavelength of a first absorption maximum (one of the aforementioned absorption maxima) and letting ?max2 represent the wavelength of a second absorption maximum (another of the aforementioned absorption maxima) at a shorter wavelength than the first absorption maximum, (?max1??max2) is at least 20 nm; (3) the aspect ratio of the molecules of the compound is at least 1.70; (4) each molecule of the compound has a non-aromatic hydrocarbon ring, a non-aromatic heterocycle, or an aromatic heterocycle; (5) the in-plane-retardation increase sensitivity of the compound is at least 0.1; 110 nm?R0(550)?170 nm; 0.72?R0(450)/R0(550)?0.96; and 0.83?R0(550)/R0(650)?0.97.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: November 22, 2016
    Assignee: KONICA MINOLTA, INC.
    Inventors: Rie Fujisawa, Midori Kogure, Takatugu Suzuki
  • Publication number: 20160070030
    Abstract: Provided is an optical film containing a cellulose derivative, the optical film having an in-plane retardation Ro550 within the range of 120 to 160 nm measured at a wavelength of 550 nm under an atmosphere of a temperature of 23° C. and a relative humidity of 55%, and a ratio Ro450/Ro550 within the range of 0.65 to 0.99, Ro450/Ro550 being a ratio of an in-plane retardation Ro450 measured at a wavelength of 450 nm to the in-plane retardation Ro550 measured at a wavelength of 550 nm, wherein, a substituent of a glucose skeleton in the cellulose derivative satisfies the requirements (a) and (b) which are described in the specification, and the optical film contains a compound A satisfying the following condition defined by Expression (a1) which is described in the specification.
    Type: Application
    Filed: April 16, 2014
    Publication date: March 10, 2016
    Applicant: KONICA MINOLTA, INC.
    Inventors: Rie FUJISAWA, Hiroyoshi KIUCHI, Kiyoshi FUKUSAKA, Takatugu SUZUKI, Hiroshi KITA
  • Publication number: 20150338563
    Abstract: The present invention provides a resin composition capable of forming a film exhibiting a small humidity-dependent variation in optical values; a triazole compound to be incorporated into the resin composition; an optical film and an optical lens, each of which is prepared from the resin composition and exhibits a small humidity-dependent variation in optical values; and a polarizing plate, a circularly polarizing plate, and an image display device, each of which includes the optical film and exhibits excellent moisture resistance. The resin composition of the present invention contains a resin and a compound having a 5-membered or 6-membered aromatic hydrocarbon or heterocyclic ring, wherein the resin is a hygroscopic resin, the compound has at least three specific aromatic rings having a specific NICS value, and the specific aromatic rings are bonded to one another via a single bond or one or two atoms.
    Type: Application
    Filed: January 9, 2014
    Publication date: November 26, 2015
    Applicant: Konica Minolta, Inc
    Inventors: Hiroyoshi KIUCHI, Takatugu SUZUKI, Kiyoshi FUKUSAKA, Rie FUJISAWA, Hiroshi KITA, Issei NAKAHARA
  • Patent number: 9151870
    Abstract: The purpose of the present invention is to provide an optical film having a large phase difference value, small moisture-induced fluctuation in the phase difference value, small photoelastic coefficient and excellent bondability with a polarizer. The optical film includes a cellulose ester (A) which satisfy formulae (1) and (2) below and a vinyl-based polymer (B). A content ratio of the cellulose ester (A) and the vinyl-based polymer (B) is from 95:5 to 50:50 by mass, the vinyl-based polymer (B) is composed of a non-aromatic vinyl-based monomer having a solubility parameter of 17.5 (MPa1/2) or larger and smaller than 20.0 (MPa1/2) and a weight average molecular weight of the vinyl-based polymer (B) is from 500 to 10,000: where 1.0?X+?Yi<2.0??formula (1) 4.0?2×X+?(ni×Yi)<6.0.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: October 6, 2015
    Assignee: KONICA MINOLTA, INC.
    Inventors: Hiroyoshi Kiuchi, Takatugu Suzuki, Kiyoshi Fukusaka
  • Publication number: 20150247963
    Abstract: A optical film includes a thermoplastic resin and a compound wherein: (1) the absorption spectrum of said compound in solution has at least two absorption maxima in the 200-350 nm wavelength range; (2) letting ?max1 represent the wavelength of a first absorption maximum (one of the aforementioned absorption maxima) and letting ?max2 represent the wavelength of a second absorption maximum (another of the aforementioned absorption maxima) at a shorter wavelength than the first absorption maximum, (?max1??max2) is at least 20 nm; (3) the aspect ratio of the molecules of the compound is at least 1.70; (4) each molecule of the compound has a non-aromatic hydrocarbon ring, a non-aromatic heterocycle, or an aromatic heterocycle; (5) the in-plane-retardation increase sensitivity of the compound is at least 0.1; 110 nm?R0(550)?170 nm; 0.72?R0(450)/R0(550)?0.96; and 0.83?R0(550)/R0(650)?0.97.
    Type: Application
    Filed: February 19, 2013
    Publication date: September 3, 2015
    Applicant: KONICA MINOLTA, INC.
    Inventors: Rie Fujisawa, Midori Kogure, Takatugu Suzuki
  • Publication number: 20130222741
    Abstract: The purpose of the present invention is to provide an optical film having a large phase difference value, small moisture-induced fluctuation in the phase difference value, small photoelastic coefficient and excellent bondability with a polarizer. The optical film includes a cellulose ester (A) which satisfy formulae (1) and (2) below and a vinyl-based polymer (B). A content ratio of the cellulose ester (A) and the vinyl-based polymer (B) is from 95:5 to 50:50 by mass, the vinyl-based polymer (B) is composed of a non-aromatic vinyl-based monomer having a solubility parameter of 17.5 (MPa1/2) or larger and smaller than 20.0 (MPa1/2) and a weight average molecular weight of the vinyl-based polymer (B) is from 500 to 10,000: where 1.0?X+?Yi<2.0??formula (1) 4.0?2×X+?(ni×Yi)<6.0.
    Type: Application
    Filed: December 2, 2011
    Publication date: August 29, 2013
    Applicant: KONICA MINOLTA, INC.
    Inventors: Hiroyoshi Kiuchi, Takatugu Suzuki, Kiyoshi Fukusaka
  • Patent number: 8472115
    Abstract: An anisotropic dye layer containing a coordination polymer is disclosed. The a polarization control film containing an oriented dichroic dye in which light absorption spectrum of a molecule is reversibly changed by charge passing are disclosed.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: June 25, 2013
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Takatugu Suzuki, Yukihito Nakazawa
  • Patent number: 8274625
    Abstract: Disclosed is a cellulose ester film which rarely causes the attachment of foreign matters to the surface of a conveying roll or the failure of film transfer induced by the attachment of the foreign matters, which is free of the partial deformation caused by foreign matters on the conveying roll, exhibits high durability after saponification treatment, has good close adhesion to a polarizer, and has excellent processing suitability in the processing into a polarizer. Also disclosed is a method for producing the cellulose ester film by a melt-casting process. Further disclosed are; a protective film for a polarizing plate, which has high film strength; a polarizing plate having high durability; and a liquid crystal display having high image quality; each comprising the cellulose ester film. The cellulose ester film comprises a cellulose ester, a compound represented by the general formula (1) and a compound represented by the general formula (2).
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: September 25, 2012
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Takatugu Suzuki, Takayuki Suzuki
  • Patent number: 8246737
    Abstract: Disclosed is a cellulose ester optical film containing cellulose ester, a polymer (a) below and a compound (b) below: (a) a polymer obtained by copolymerization of an ethylenically unsaturated monomer having in the molecule a partial structure represented by formula (1) below with at least one ethylenically unsaturated monomer, and (b) at least one compound selected from the group consisting of a compound represented by formula (2) below and a compound represented by formula (3) below,
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: August 21, 2012
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Takayuki Suzuki, Takatugu Suzuki, Issei Nakahara